How to understand what carbocation is most stable when comparing four different alkene compounds.
How to understand what carbocation is most stable when comparing four different alkene compounds.
Rank the set of compounds in order of carbocation stability. (1 = most stable, 4 = least stable) Structure A: Structure B: Structure : Structure D:
6. Which of the four carbocations shown is the most stable (will not rearrange) and which one(s) will undergo carbocation rearrangement(s)? Indicate the correct structures of the products of the carbocation rearrangements. To practice for the exam: use resonance structures to explain why you selected specific a carbocation as the most stable. Where applicable, use the curved arrow(s) to clearly draw the mechanism of the carbocation rearrangement. HO HO A. carbocation B is most stable and will not rearrange, and...
Which of the following alkyl halides forms the most stable carbocation when it undergoes an E1 reaction? ão ao ar
6. Which of the four carbocations shown is the most stable (will not rearrange) and which one(s) will undergo carbocation rearrangement(s)? Indicate the correct structures of the products of the carbocation rearrangements. To practice for the exam: use resonance structures to explain why you selected specific a carbocation as the most stable. Where applicable, use the curved arrow(s) to clearly draw the mechanism of the carbocation rearrangement. HO UW A. carbocation B is most stable and will not rearrange, and...
please answer questions 1-4
Question 1 Which of the following is the most stable carbocation? СН3 V. CH2 What is the major product of the following reaction? Н HBO C CHS CH CH CH3-CH ( CH, Br CH2-CH-C–CH, Br Br CH CH CH3-CH:-¢-CH Br ін, CHE CH CH.-CH- Br CH. D Question 3 What is the major product of the following reaction? CH, НО 1 Оснок IV. CH2OH CH3 "О" ОН Д. он СН3 CH3 Но Ш. CH, ОН Question...
7,8 please
Circle the most stable one; What alkene (or cyclohexene) you start with to prepare the following halides? There may be more than one possibility. I -ethyl-1-Iodocyclohexane Bromocyclohexane
what are the answrts to 6 and 7?
most stable 6. [04 pts.] What alkene gives the produ with dimethyl methyl sulfide? f ter reaction first with ozone and then 3 2. BUS 7. [04 pts. What stereoisomers are obtained when (R)-1,4-dimethylcyclohexene reacts with H/Pt cat. Draw the structures of the isomers.
9. Choose the most stable alkene among the following: a. 1-hexene b. (E)-2-hexene c. (Z)-2-hexene d. They are all of equal stability. 10. What is the relation between an enantiomer's configuration and its specific rotation? (a) R compounds usually are dextrorotatory with few exceptions. (b) R compounds always are dextrorotatory. (c) There is no relation. (d) R compounds always are levorotatory.
8.
7. Which alkene below reacts most rapidly with HBr to give an alkyl bromide? CIEN that can generate the most stable carbocation will react the fastest. mide? Circle it. (0.25 pt) Hint: The alken - 8. Complete the mechanism of hydration of alkene below. Please follow curved arrows to preure structures in each step. (1.5 pts, 0.5 pt each) ed arrows to predict the resulting Step 1 of hydration of 2-methyl-1-propene: Note that the most stable carbocation is formed...